Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/11660#discussion_r55904776
--- Diff: core/src/main/scala/org/apache/spark/storage/BlockManager.scala
---
@@ -944,6 +896,85 @@ private[spark] class BlockManager(
}
/**
+ * Attempts to cache spilled bytes read from disk into the MemoryStore
in order to speed up
+ * subsequent reads. This method requires the caller to hold a read lock
on the block.
+ *
+ * @return a copy of the bytes. The original byes passed this method
should no longer
--- End diff --
byes
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